NOAA weather radar detected hail over 17 of the 1000 US cities we track on this date, across 3 states (AZ, CA, FL) — 116 radar detections in total. The most active was Palmdale, CA with 47.
Check a specific address for this date →These dates are GMT, not local. GMT runs 5–8 hours ahead of the US, so a storm that hit at 8:30 PM local on one evening is recorded here under the following date. Evening storms are the norm across the Plains and the Southeast. If you are writing a date of loss on a claim form, check the local time — being one day off is a real reason a carrier can push back.
| City | Radar detections |
|---|---|
| Palmdale, CA | 47 |
| Santa Ana, CA | 12 |
| Cypress, CA | 8 |
| Stanton, CA | 8 |
| Westminster, CA | 8 |
| Corona, CA | 5 |
| Maricopa, AZ | 5 |
| Costa Mesa, CA | 4 |
| Newport Beach, CA | 4 |
| Surprise, AZ | 4 |
| Wellington, FL | 3 |
| Irvine, CA | 2 |
| Tustin, CA | 2 |
| Aliso Viejo, CA | 1 |
| Lake Forest, CA | 1 |
| Mission Viejo, CA | 1 |
| Tucson, AZ | 1 |
These are city-centre tiles. To see whether radar registered hail over your street on September 10, 2011 — and every other date going back to 1992 — run the free address lookup. No signup, no account, and you can download the result as a CSV.
Look up your address →What a detection means. Counts describe a 0.1° grid tile — roughly 7 miles north to south — containing the city, not a specific address. A detection inside the tile does not prove hail fell on any particular roof, and no detection does not prove none fell. This is a screening tool, not an insurance claim, a loss report, or an engineering inspection.
NOAA NCEI Severe Weather Data Inventory,
dataset nx3hail — NEXRAD Level-III Hail Detection Algorithm output. Public-domain US
government data.
All storm dates · All cities · Hail history by address
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